Automobile wheel



Oct. 4, 1932. Q PARKER 1,880,357

AUTOMOBILE WHEEL Original Filed May 19, 1926 2 Sheets-Sheet l gnm'ntocOrreI 19. Parker MM W Oct. 4, 1932. o. A. PARKER 1,830,357

AUTOMOBILE WHEEL Original Filed May 19, 1926 2 Sheets-Sheet 2 gwoe'ntozUrre/ A. Parker Patented Oct. 4, 1932 UNITED STATES ORREL A. PARKER,

OFFICE OF CLEVELAND, OHIO, ASSIGNOR TO THE PARKER WHEEL COMPANY, OFCLEVELAND, OHIO, A CORPORATION OF OHIO AUTOMOBILE WHEEL Continuation ofapplication Serial No. 110,090, filed May 19, I926. This applicationfiled October 28, 1930.

Serial No. 491,676.

This invention relates generally to automobile wheels and moreparticularly to wheels carrying dual tires, that is two tires arrangedside by side for the purpose of jointly carrying the load.

The invention is also particularly adapted for rear wheels provided withbrake drums inasmuch as dual tires are usually employed at the rear ofthe vehicle only, but the principle of the invention is applicablewherever dual tires are employed. Dual tires are usually employed onbusses and trucks and in their use, there are certain obstacles whichare encountered and must be taken into consideration.

First of all are the limitations in the over all width of the axle, asoften the maximum width of rear axle is prescribed by law, and underthese limitations it is usual to insert the brake drum inside the wheelbody and the inner tire.

Secondly, small wheels are almost a necessity to accommodate balloontires and keep down excessive height.

Third, large sized brakes are necessary to insure safety and theseproduce,

Fourth, the brake heat, and also interference with the cooling of thetires.

- The object of my invention therefore is to provide means wherebyballoon or high pressure dual tirescan be employed upon wheel bodies ofsmall diameters with large sized brake drums inside the inner tire, andstill keep the brake drums and tires comparatively cool, by laterallydistributing the air current of the wheel body or by fans to aid theproduction of air currents and carrying off the heat of the drums andtires generated by friction.

This object I accomplish by interposing a deflecting band or shieldbetween the tire carrying rims for the purpose of preventing the radialescape, between the rims, of the air currents set up by the wheel bodyor by fans, and cause these currents to move laterally beneath the tirecarrying rims and over the outer surface of the brake drum and in someinstances through the brake drum.

My invention also contemplates surrounding the brake drum with anon-conducting covering and also providing the brake drum with means fordrawing or forcing air therethrough in either direction.

The invention also includes certain other details of construction andcombination of parts, all of which will be fully described hereinafterand pointed out in the appended claims.

lVhile my invention is capable of use in connection with various typesof wheel bodies I have, for the purpose of illustrating the invention,shown the same applied to a wheel body substantially of the type shownand described in the application of John W. Holt filed July 19, 1924,Serial No. 726,909, and in these drawings:

Fig. 1 is a face view of a wheel body provided with dual tires andequipped with my improvement, certain portions of the structures beingbroken away in order to more clearly disclose the other features ofconstruction;

Fig. 2 is a vertical sectional view of the wheel body with the brakedrum connected thereto and the dual tire carrying rims arranged thereonand also the deflecting shield arranged between the rims;

Fig, 3 is a detail sectional view of another type of brake drum detachedfrom the wheel;

Figs. 4 and 5 are detail sectional views showing different types ofT-shaped spokes constituting parts of the wheel body.

In giving effect to my-invention I preferably employ a spoked wheel bodyA having a brake drum 13 connected to the inner or rear side thereof.The wheel body A is intended to, and does, support two dernountable tirecarrying rims C and D, which carry the tires C and D preferably of thepneumatic type, either balloon or high pressure.

The rims are spaced axially apart upon the wheel body as shown, and itwill be noted that the inner tire carrying rim C extends almost entirelyover the periphery of the brake drum B, and that the distance orclearance between the brake drum B and rim C is comparatively small.

This is almost a necessity, for, as before stated, owing to thelimitations of overall width, it is necessary to attach the brake modrum to the wheel body within the inner rim; and these brake drums mustof necessity be large in size.

It has been found that wherever dual tires are arranged upon a wheelbody, with an axial space between the tire carrying rims, and the brakedrum within the'inner tire rim, that the brake drum and rims becomeheated, and that this heat is not dissipated but is communicated to thetires because the air currents set up by the revolving wheel body passout radially between the tire carrying rims; whereas to cool the brakedrum and rims, these currents should be deflected laterally so that theheat generated by friction shall be driven beneath the rims and betweenthe inner .rim and brake drum and through the brake drum and brakemechanism in case the brake drum has openings in the same.

This I accomplish by providing an encircling band or shield E, which isof such width as to fill the space between the inner rim C and outer rimD, said band or shield being applied to-the wheel body A at the sametime that the rims C and D are applied and also tensioned or secured bythe same means or any other suitable means. This band or shield Eprevents the radial escape of the air currents set up by therevolvingwheel body, and these currents impinging upon the band orshield E are deflected or directed laterally, and when given thislateral direction they pass along the inner sides of the rims, betweenthe inner rim C and brake drum B and also through the brake drum,carrying away the heat generated by friction. In this manner.

the heat of the brake drum, or at least a great portion thereof, is notcommunicated to the inner tire but is dissipated, leaving the inner tiresufliciently cool to prevent overheating, and this dissipation of theheat laterally also tends to reduce the temperature of the outerrimand-tire.

v If desired a thin sheet metal ring P may be attached to the inner endof the brake drum and this sheet metal ring is formed with louvres P bymeans of which a definite quantity of air can be drawn through the brakedrum according to the direction of the louvres.

In the construction shown inFig. 3 the plate attached to the inner endof the brakedrum is upset as' indicated at P and the directon and viceversa, and in some cases.

i I claim:

currents of air to pass through the brake drum and, as before stated,the encircling band or shield E will cause the lateral direction of aircurrents across the exterior of the brake drum, blowing out the heatedair which would otherwise accumulate between the brake drum and the rimbase.

If desired water cooled brake shoes can be employed or the shoes couldbe made of bronze, aluminum or any other metal of high conductivity inorder to more readily conduct the frictional heat into the shoes andthereby prevent the heat accumulating in the brake drum.

If desired, I may place a covering Q of asbestos, upon the exterior ofthe brake drum and held in place by wire. bands Q. This covering ofasbestos will still further prevent the communication of heat from theexterior thereby cooling the rim bases and blowing off the heated airfrom the brake drum and maintainingthe brake drum at a much lowerworking temperature.

' It will thus be seen that I provide an exceedingly simple and highlyeflicie nt device capable of carrying out all of the objectshereinbeforerecited.

This application is a continuation of my previously filed application,Serial No. 110,090, filed May 19, 1926. I

, Having thus described my invention I am aware that numerous andextensivedepartures may be made therefrom but without departing from thespirit of my invention.

' 1. The combination with a wheel body and a pair of tire carrying rimsarranged upon said wheel body, said body adapted by its rotation todeliver air radially between said rims, said rims being spaced laterallyapart upon said wheel body, and means interposed between said rims toarrest the radial passage of air current therebetween.

2. The. combination with a wheel body of an inner tire carrying rim andan outer tire carrying rim arranged upon said wheel body by its rotationto deliver air radially between saidrims, and an encircling bandarranged about the wheel body and between the rims to prevent the radialpassage ofair currents between said rims.

3. The combination with a wheel body, of a pair of laterally spaced tirecarrying rims arranged upon said wheel body, said body adapted by itsrotation to deliver air radially between said rims, and a deflectingshield interposed between said rims and adapted to prevent the radialpassage of air between said r1ms.

4. The combination with a wheel body having a brake drum connectedthereto, of a interposed between the Time to restrain the radial passageof air therebetween.

9. In automobile wheels, the combination with a wheel body, a pair oftire carrying rims mounted thereon in relative spaced re-' 'lation, anannular brake drum telescoped within one of said rims, supported by saidbody, said drum having its peripheral surface disposed closely adjacentthe inner surface of said rim, and an air deflecting band interposedbetween the rims to restrain the radial passage of air therebetween.

In testimony whereof I hereunto aflix my signature this 27 day ofOctober, 1930.

' ORREL A. PARKER.

pair of demountable tire carrying rims arranged upon' said wheel body,said body adapted by its rotation to deliver air radially between saidrims, one of said rims surround ing said brake drum, and a deflectorinterposed between the tire carrying rims adapted to prevent the radialescape of air therebetween and deflect the air currents between the rimand brake drum..

5. The combination with a wheel body capable of setting up currents ofair while in rotation, of a pair of tire carrying rims arranged uponsaid wheel body and spaced laterally apart and means interposed betweensaid rims for preventing the radial escape of said air currents, saidmeans deflecting laterally said air currents as set forth.

6. The combination withawheel body capable of creating air currentsduring rotation, a brake drum connected to said wheel body, a pair oftire carrying rims arranged upon said wheel body and spaced laterallyapart and means interposed between said rims for preventing the radialescape of said air currents, said means deflecting said air currentslaterally between one of said rims and the exterior of the brake drum.

7. In automobile wheels, the combination with a wheel body, air fanningspokes therefor, a pair of tire carrying rims mounted thereon inrelative spaced relation, an annular brake drum telescoped within one ofsaid rims, supported by said body, said drum having its peripheralsurface disposed closely adjacent the inner surface of saidrim, and anair deflector interposed between the rims to restrain the radial passageof air there-v between. i

8. In automobile wheels, the combination with a wheel body, including awheel hub, a pair of tire carrying rims mounted thereon in relativespaced relation, an annular brake drum telescoped within one of saidrims, supported by said body, said drum having its peripheral surfacedisposed closely adjacent the inner surface of said rim, said wheel bodyformed with air fanning portions intermediate its hub and said rims, andan air deflector

